2 * Copyright (C) 2016 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.android.settings.deletionhelper;
19 import android.content.Context;
20 import android.support.v7.preference.PreferenceGroup;
21 import android.support.v7.preference.Preference;
24 * Helper for the Deletion Helper which can query, clear out, and visualize deletable data.
25 * This could represent a helper for deleting photos, downloads, movies, etc.
27 public interface DeletionType {
29 * Registers a callback to call when the amount of freeable space is updated.
30 * @param listener A callback.
32 void registerFreeableChangedListener(FreeableChangedListener listener);
35 * Resumes an operation, intended to be called when the deletion fragment resumes.
40 * Pauses the feature's operations, intended to be called when the deletion fragment is paused.
45 * Asynchronously free up the freeable information for the feature.
47 void clearFreeableData();
50 * Callback interface to listen for when a deletion feature's amount of freeable space updates.
52 interface FreeableChangedListener {
53 void onFreeableChanged(int numItems, long bytesFreeable);